Portion of a valve



FIG. 1 is a perspective view of a portion of a valve according to the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is an enlarged portion of the view shown in FIG. 5.

The broken lines in FIG. 1 through FIG. 8 are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a valve, as shown and described. 